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Finding the Fourth Proportional to 330,168.80, 495,253.20 and 119,779.40

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Solution

The fourth proportional to 330,168.80, 495,253.20 and 119,779.40 is: 179,669.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,168.80 : 495,253.20 = 119,779.40 : x
  2. Step 2: Convert to fraction form
    330,168.80/495,253.20 = 119,779.40/x
  3. Step 3: Cross multiply
    330,168.80x = 495,253.20 × 119,779.40
  4. Step 4: Simplify right side
    330,168.80x = 59,321,131,144.08
  5. Step 5: Solve for x
    x = 59,321,131,144.08/330,168.80
  6. Step 6: Final answer
    x = 179,669.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.